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Low power, low delay: Opportunistic routing meets duty cycling
Publikationstyp
Conference Paper
Date Issued
2012-05-08
Sprache
English
Author(s)
Start Page
185
End Page
196
Citation
Proceedings of the 11th International Conference on Information Processing in Sensor Networks: 185-196 (2012)
Contribution to Conference
Publisher DOI
Scopus ID
Publisher
ACM
ISBN
9781450312271
Traditionally, routing in wireless sensor networks consists of two steps: First, the routing protocol selects a next hop, and, second, the MAC protocol waits for the intended destination to wake up and receive the data. This design makes it difficult to adapt to link dynamics and introduces delays while waiting for the next hop to wake up. In this paper we introduce ORW, a practical opportunistic routing scheme for wireless sensor networks. In a dutycycled setting, packets are addressed to sets of potential receivers and forwarded by the neighbor that wakes up first and successfully receives the packet. This reduces delay and energy consumption by utilizing all neighbors as potential forwarders. Furthermore, this increases resilience to wireless link dynamics by exploiting spatial diversity. Our results show that ORW reduces radio duty-cycles on average by 50% (up to 90% on individual nodes) and delays by 30% to 90% when compared to the state of the art.
Subjects
Duty cycle | Energy efficiency | Opportunistic routing | Wireless sensor network
DDC Class
620: Engineering